Let me explaine what happened; I was working on a visualization of something I repetedly see in my mind. Usually its almost always the same when I see it, there are very simple sutle changes, but the place, people involved and time of day are always the same. This time however I decided to meditate and focus on what was happening, visualizing each small detail, smell, touch, sounds ect. Normally I can get some of them but not all of them, but again this time I spent more time working with it. I felt more connected with the visulisation this time, more in tune with it, then something very strange happened. Now I know for a fact this has not yet come to pass, because I am involved. As I was becoming more detailed with the visualization, all of a sudden I felt as if I released from my body, my minds eye went purple and spiraled quickly into what I would call a "rabbit hole" and all of a sudden it felt as if I was inside of the visualization, I saw something vividly that I had not seen before and all of my senses were heightened as if there. This only lasted a second or two at best, as soon as it started I could not breath and I was pulled back to reality quickly as if from a nightmare including sitting up and gasping for air.
What was that? What is it called?
As scary as it was the first time, I am looking forward to trying again, hopefully finding a way to stay longer each time. Please pardon my spelling errors, my phone is not playing fair about letting me go back and fix them.